NEW YORK (MONEY Magazine) -- A state 529 college savings plan is best described as a 401(k) for college, a simple plan that lets you put aside money regularly, invest in mutual funds and watch the earnings grow tax-free.

In the table below you can see, state-by state, the three things you need to know about each plan: Do I get a tax break? Where can I buy it? and What are the expenses? For more on how much you can contribute and how to go about choosing a plan, see "Tips for choosing a 529 plan."

You can also view MONEY's picks for the best plans, both nationally and for in-state residents.